Using the materials listed below to create a digital alarm that has a variable range of times. The

alarm should have a visual representation using a $4-$digit seven$-$segment display. As the time

reaches zero the alarm goes off. Ensure to incorporate a buzzer that makes a sound every $3$ seconds

after the alarm goes off. To turn it off there should be a switch that will restart the passage of time.

$$ Potentiometer to adjust the time

$$ Uses a switch of your choosing, to start $/$ stop the countdown, and reset it$.$

$$ Using the $4-$digit $7-$segment display, there should be a visible countdown of minutes and

seconds.

$$ When the timer reaches zero a buzzer should start making sounds to alert the user the timer

has ended.

Required Materials:

$4-$digit $7-$Segment Display

$$ A tactile switch for user input $($pushbutton$,$ tilt switch, etc.$)$

$$ Potentiometer

$$ A buzzer to make sound

$$ ELEEGO microcontroller